We divide 54399086 by 654
We want to divide 54399086 by 654.

Step 1:
When dividing 5 by 654, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 654

Moving on to step 2:
654 can be fit into 54 0 times, resulting in a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Take the next digit (3) from the dividend and append it to 54, then repeat: 543 / 654

Moving on to step 3:
654 can be fit into 543 0 times, resulting in a remainder of 543.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 543, we get 543.
Take the next digit (9) from the dividend and append it to 543, then repeat: 5439 / 654

Going ahead to step 4:
654 can be fit into 5439 8 times, resulting in a remainder of 207.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 5232 from 5439 leaves us with 207.
Grab the next digit (9) from the dividend, add it to 207, then carry on: 2079 / 654

Step 5:
When dividing 2079 by 654, we get 3 with a remainder of 117.
Put 3 as the next digit of the answer. 
Result so far: 83.0
Subtracting 1962 from 2079 leaves us with 117.
Append the next digit (0) from the dividend to 117 and continue with: 1170 / 654

Step 6:
654 can be fit into 1170 1 times, resulting in a remainder of 516.
Record the quotient 1 as the next digit in the result. 
Result so far: 831.0
If we take 654 away from 1170, we end up with 516.
Append the next digit (8) from the dividend to 516 and continue with: 5168 / 654

Advancing to step 7:
When dividing 5168 by 654, we get 7 with a remainder of 590.
Use 7 as the next digit of our solution. 
Result so far: 8317.0
If we subtract 4578 from 5168, we get 590.
Bring next digit (6) of the dividend behind the 590 and repeat the process: 5906 / 654

Step 8:
654 can be fit into 5906 9 times, resulting in a remainder of 20.
Put 9 as the next digit of the answer. 
Result so far: 83179.0
Deduct 5886 from 5906 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
If we divide 200 by 654, we get 0 and a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 83179.0
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 10:
When dividing 2000 by 654, we get 3 with a remainder of 38.
The next digit of our result is 3. 
Result so far: 83179.03
If we take 1962 away from 2000, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 11:
654 can be fit into 380 0 times, resulting in a remainder of 380.
The next digit of our result is 0. 
Result so far: 83179.03
Subtract 0 from 380 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 12:
654 goes into 3800 5 times with a remainder of 530.
Record the quotient 5 as the next digit in the result. 
Result so far: 83179.0305
Subtract 3270 from 3800 to get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Advancing to step 13:
5300 divided by 654 is 8 with a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 83179.03058
Deduct 5232 from 5300 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 14:
The number 654 fits into 680 1 times, leaving a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 83179.030581
Subtracting 654 from 680 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 15:
654 goes into 260 0 times with a remainder of 260.
The number 0 becomes the next digit in our result. 
Result so far: 83179.030581
Subtract 0 from 260 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 16:
If we divide 2600 by 654, we get 3 and a remainder of 638.
Record the quotient 3 as the next digit in the result. 
Result so far: 83179.03058103
If we subtract 1962 from 2600, we get 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

The final result is 83179.03058103 with a remainder of 6.38e-07.